Crosstalk is out of phase.
What this means is that signal from the left channel is being subtracted from the right channel and visa-versa.
This subtracted signal robs the music of its vitality.
The sound looses depth and becomes flat.
It looses separation and compresses towards mono.
I use stereo recordings with good channel separation and a clearly centered voice.
Also, cymbals - the shimmer - is ruined by crosstalk. They are a good acid test, though of course other things ruin the sound of cymbals too.
What this means is that signal from the left channel is being subtracted from the right channel and visa-versa.
This subtracted signal robs the music of its vitality.
The sound looses depth and becomes flat.
It looses separation and compresses towards mono.
I use stereo recordings with good channel separation and a clearly centered voice.
Also, cymbals - the shimmer - is ruined by crosstalk. They are a good acid test, though of course other things ruin the sound of cymbals too.